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Finding the Fourth Proportional to 559,799.19, 772,494.98 and 318,049.83

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Solution

The fourth proportional to 559,799.19, 772,494.98 and 318,049.83 is: 438,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,799.19 : 772,494.98 = 318,049.83 : x
  2. Step 2: Convert to fraction form
    559,799.19/772,494.98 = 318,049.83/x
  3. Step 3: Cross multiply
    559,799.19x = 772,494.98 × 318,049.83
  4. Step 4: Simplify right side
    559,799.19x = 245,691,895,474.60
  5. Step 5: Solve for x
    x = 245,691,895,474.60/559,799.19
  6. Step 6: Final answer
    x = 438,892.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.